What does it mean to "float" a horse's teeth?

The term "float" in relation to a horse's teeth refers specifically to the process of filing down sharp edges that can develop on a horse's molars over time. Horses’ teeth continuously grow and their chewing actions can lead to the formation of uneven surfaces or sharp points, which can be uncomfortable or even harmful to their mouths, making it difficult for them to eat properly.

Regular floating helps to maintain dental health by smoothing these sharp edges, ultimately contributing to better overall well-being and performance for the horse. This practice also prevents potential injuries to the horse's gums and cheeks caused by those sharp edges.

The other options, while related to dental care, do not accurately capture what "floating" specifically entails. Removing bad teeth involves extraction, checking for cavities relates to identification rather than treatment, and brushing is a different routine maintenance practice.